Finding the Third Proportional to 712,356 and 1,109,382

Step by Step Solution

1. Step 1: Write the proportion equation
   712,356 : 1,109,382 = 1,109,382 : x
2. Step 2: Convert to fraction form
   712,356/1,109,382 = 1,109,382/x
3. Step 3: Cross multiply
   712,356x = 1,109,382 × 1,109,382
4. Step 4: Simplify right side
   712,356x = 1,230,728,421,924
5. Step 5: Solve for x
   x = 1,230,728,421,924/712,356
6. Step 6: Final answer
   x = 1,727,687.31